MsgBox has no ding!

[click]

Hello! Sometime ago, a programmer that was here, was very annoyed by the "ding" of the MsgBox, I kept telling him to do a Debug.Print, when he was debugging, but he insisted on the MsgBox. Since he kept putting the volume down all the way, many times he missed other "sounds" like new mail and stuff, so he got totally annoided(is that a word?) and one day he said: "I'm going to fix this stupid MsgBox ding!" So he did, I don't know how, but after he finished the program and it got distributed (installed) around the office, all the computers that it got put into, lost the "ding". Does any one know the way to put this back? I have tried to go into the control panel>sounds, and the ding is there, for windows sounds, but it won't work on some instances, for example if you are in a window and choose a menu from the window and then try to click somewhere back on the original window, there is no "ding", also when you are trying to adjust the sound with the sound volume out of the systray, the volume control is supposed to "ding" when you move the volume lever and let go of it, so you can hear the volume of the "ding". If someone could help out please do so. Much Thanks. Click. :-(